Home / 12,585.04-18,771.38-10,928.56

Finding the Fourth Proportional to 12,585.04, 18,771.38 and 10,928.56

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Solution

The fourth proportional to 12,585.04, 18,771.38 and 10,928.56 is: 16,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.04 : 18,771.38 = 10,928.56 : x
  2. Step 2: Convert to fraction form
    12,585.04/18,771.38 = 10,928.56/x
  3. Step 3: Cross multiply
    12,585.04x = 18,771.38 × 10,928.56
  4. Step 4: Simplify right side
    12,585.04x = 205,144,152.61
  5. Step 5: Solve for x
    x = 205,144,152.61/12,585.04
  6. Step 6: Final answer
    x = 16,300.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.